A plant -mediated synthesis of silver & gold nanoparticles and their characterization using aqueous leaf extract of selected medicinal trees

The development of reliable, environmentally benign processes for the synthesis of nanoscale materials is an important feature of nanotechnology. Metal nanostructures have usual physiochemical properties and biological actions compared to their bulk parent materials. Gold (Au) and Silver (Ag) nanoparticles have a range of interesting properties which emphasize the electrical ones, optical, catalytic, applications in biomedicine. Biosynthetic processes for nanoparticles would be more constructive if nanoparticles were formed extracellularly using leaf extracts of medicinal trees and in a controlled method according to their size, dispersity and shape. In this study, the production of Ag and Au nanoparticles (as a reducing agent) was carried out from the leaves of selected medicinal trees by the shade dry exposure method. Qualitative comparisons of the synthesized nanoparticles of selected trees were measured. The Quantification of nanoparticles synthesized was done using UV-Vis spectroscopy and characterization was done by X-Ray Diffraction (XRD). Further analysis carried out by Fourier Transform Infra Red spectroscopy (FTIR), provided confirmation for the presence of amino groups, which increased the stability of the synthesized nanoparticles. Scanning Electron Microscopy (SEM) and Energy Dispersive Spectrometry (EDS) revealed the size and dispersity of the nanoparticles. Therefore, eco-friendly, low cost blend and non toxicity are the main features that make it more striking potential option for biomedical field and elsewhere. The most outcome of this work will be the progress of value added products for biomedical and nanotechnology based industries.